Intel Iris Plus Graphics 645 vs Intel HD Graphics 400

VS

Intel Iris Plus Graphics 645 Intel HD Graphics 400

We compared two Integrated graphics card GPUs: 0System Shared VRAM Iris Plus Graphics 645 and 0System Shared VRAM HD Graphics 400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

Intel Iris Plus Graphics 645 's Advantages

Released 4 years and 6 months late

Boost Clock has increased by 75% (1050MHz vs 600MHz)

288 additional rendering cores

Intel HD Graphics 400 's Advantages

Lower TDP (6W vs 15W)

Score

Benchmark

FP32 (float)

Iris Plus Graphics 645 +600%

0.806 TFLOPS

HD Graphics 400

0.115 TFLOPS

Iris Plus Graphics 645

VS

HD Graphics 400

Graphics Card

Oct 2019

Release Date

Apr 2015

HD Graphics-M

Generation

HD Graphics-T

Integrated

Type

Integrated

Ring Bus

Bus Interface

Ring Bus

Clock Speeds

300 MHz

Base Clock

320 MHz

1050 MHz

Boost Clock

600 MHz

System Shared

Memory Clock

System Shared

Memory

System Shared

Memory Size

System Shared

Memory Type

System Shared

Memory Bus

System Shared

System Dependent

Bandwidth

System Dependent

Render Config

-

SM Count

-

Compute Units

-

384

Shading Units

96

48

TMUs

12

6

ROPs

2

-

Tensor Cores

-

RT Cores

-

L1 Cache

-

L2 Cache

-

Theoretical Performance

6.300 GPixel/s

Pixel Rate

1.200 GPixel/s

50.40 GTexel/s

Texture Rate

7.200 GTexel/s

1.613 TFLOPS

FP16 (half)

-

806.4 GFLOPS

FP32 (float)

115.2 GFLOPS

201.6 GFLOPS

FP64 (double)

28.80 GFLOPS

Graphics Processor

Coffee Lake GT3e

GPU Name

Braswell GT1

-

GPU Variant

-

Generation 9.5

Architecture

Generation 8.0

Intel

Foundry

Intel

14 nm+++

Process Size

14 nm

Unknown

Transistors

Unknown

Die Size

Unknown

Board Design

15W

TDP

6W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (12_1)

DirectX

12 (11_1)

4.6

OpenGL

4.3

3.0

OpenCL

3.0

1.3

Vulkan

1.0

-

CUDA

-

6.4

Shader Model

5.1

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